An attempt to share my day-to-day SharePoint experience

ValidateCredentialClaims – Access Denied: Claims stored in the credentials did not match with the group claim for a group app.

Hi,
Users were getting an error when they were trying to access the SharePoint site content. I checked the logs and found below errors:

ValidateCredentialClaims – Access Denied: Claims stored in the credentials did not match with the group claim for a group app.
Access is denied to the Secure Store Service.

In my case this was related to the members of my “Target Application” in my “Secure Store Service”. To fix it I went to Central Admin > Application Management > Manage Service Applications > Secure Store Service and edited the Target Application ID. I went to the third page by hitting Next.
I just added my members(or groups) to my target application’s member section.